DS-979: modified filter group to search using a special search param instead of the q param if the search param is present; added functionality to disable another select2 on select of a select2 if a special parameter is set; added functionality to change the filter key if a special filter 'modifyQryStrKey' is set git-svn-id: https://svn.lemanscorp.com/lemans-common/lemans-lib/filter-group/trunk@2144 87e789eb-e127-b149-827f-e92347ffb128